In a study published last month in mSystems, researchers from Osaka University revealed that the interaction between two common types of oral bacteria leads to the production of a chemical compound that is a major cause of ...
Cell & Microbiology
Feb 15, 2024
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287
Solitons are quasiparticles that propagate along a non-dissipative wave. Put another way, they are waveforms that hold their shape as they move—like a single wave moving across the surface of a pond. They can also show ...
Optics & Photonics
Jan 31, 2024
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9
A team of ethologists, natural scientists and psychologists affiliated with several institutions in Hungary has found evidence suggesting that some of the attraction by humans to flat-faced dogs can be tied to their stronger ...
University of Helsinki researchers tested a new method of diagnosing sleep-disordered breathing in dogs using a neckband developed for human sleep apnea diagnostics. The study revealed that sleep-disordered breathing is more ...
Veterinary medicine
Jun 13, 2023
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12
Flat-faced dogs such as French and English bulldogs are extremely popular despite suffering from severe innate diseases. Hungarian researchers have attempted to uncover the explanation for this paradox. In the end, they concluded ...
Plants & Animals
Jun 6, 2023
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13
Most states in the U.S. allow people to use cannabis for medical or recreational purposes. Yet all states want their roadways to be safe. A breathalyzer that can accurately identify people who recently smoked cannabis might ...
Analytical Chemistry
May 22, 2023
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22
With each breath, humans exhale more than 1,000 distinct molecules, producing a unique chemical fingerprint or "breathprint" rich with clues about what's going on inside the body.
Analytical Chemistry
May 10, 2023
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126
Hydrogen cyanide (HCN) featured with high volatility and high adsorption is a common toxic and hazardous gas. Traces of HCN are also found in human exhaled breath. Unusual high HCN concentration in the breath of cystic fibrosis ...
Analytical Chemistry
Apr 28, 2023
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15
JILA researchers have upgraded a breathalyzer based on Nobel Prize-winning frequency-comb technology and combined it with machine learning to detect SARS-CoV-2 infection with excellent accuracy in 170 volunteer subjects. ...
Analytical Chemistry
Apr 6, 2023
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133
Gills are best known for helping most fish species breathe underwater. But less well known is the fact gills regulate the salt and pH balance of fishes' blood, a vital role played by the kidneys in other animals. Collectively ...
Evolution
Oct 19, 2022
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29
Breathing is the process that moves air in and out of the lungs. Aerobic organisms require oxygen to release energy via respiration, in the form of the metabolism of energy-rich molecules such as glucose. Breathing is only one process that delivers oxygen to where it is needed in the body and removes carbon dioxide. Another important process involves the movement of blood by the circulatory system. Gas exchange occurs in the pulmonary alveoli by passive diffusion of gases between the alveolar gas and the blood in lung capillaries. Once these dissolved gases are in the blood, the heart powers their flow around the body (via the circulatory system). The medical term for normal relaxed breathing is eupnea.
In addition to removing carbon dioxide, breathing results in loss of water from the body. Exhaled air has a relative humidity of 100% because of water diffusing across the moist surface of breathing passages and alveoli.
This text uses material from Wikipedia, licensed under CC BY-SA
